Slide rule '99 : 5th international meeting, Cambridge, England : proceedings /
International Meeting of Slide Rule Collectors(5th :1999 :Cambridge, England)
Barnes, Colin A.
Oughtred Society.
Ely : C.A. Barnes,
c1999.
Meeting held Cambridge, England, 20th and 21st August 1999.
Includes bibliographical references.
Slide-rule
Mathematical instruments